1.Entering the buffer number using keyboard. Just start typing the number using keyboard.
The plugin will search for the buffer with that number and will keep going to the matching
buffers. Entered number will be shown at the top you can use backspace to edit it.When you
are in the desired buffer, press enter or any control keys that are
displayed at the bottom to execute any command available, on that buffer

Available commands

Enter(Replace current buffer)
o - (Make window fill with selected buffer )
h/v - (Horizontal/vertical Split)
g - (Go to buffer window if it is visible in a tab)
d - (Delete selected buffer)
t - (Open buffer in a new tab)
c - (Clear all the diff views)
m - Toggle detailed view for files
x - Close a window, in whatever tab it is displayed.
'-' - (Opens a vertical window showing difference of the selected buffer with the current buffer. The scrolling of the new window will be bound to the current buffer )

2.Move up or down using the navigation keys to reach the buffer line.

3.Double click on a buffer line using the mouse. Will immediately switch to
that buffer

If you are having any issues using the plugin or if you find any bugs, please let me know at sandeepcr2@gmail.com.

install details

Copy the file buffet.vim to the plugins directory.
The command to open the buffer list is

:Bufferlist

To make this plugin really useful you have to assign a shortcut key for it,
say you want F2 key to open the buffer list. you can add the following line in your .vimrc file.